Adding React course (#9991)

* Adding React course

* Made necessary changes, moved course to english section.

* Made all suggested changes in course link.

courses/free-courses-en.md

@@ -978,6 +978,7 @@
 
 #### React
 
+* [Complete React course for beginner](https://youtube.com/playlist?list=PLRAV69dS1uWQos1M1xP6LWN6C-lZvpkmq) - Hitesh Choudhary
 * [Frontend Armory: React Fundamentals](https://frontarm.com/courses/react-fundamentals/) - James K. Nelson
 * [Full Modern React Tutorial](https://www.youtube.com/playlist?list=PL4cUxeGkcC9gZD-Tvwfod2gaISzfRiP9d) - The Net Ninja (with practical)
 * [Full-Stack Web Development with React Specialization](https://www.coursera.org/specializations/full-stack-react) - Jogesh K. Muppala (Coursera)